Iroquois County, Illinois Hail Map & History
Iroquois County was hit as recently as 2026-07-27, 49 days ago. Iroquois County is hit in most years. The largest stone on record here is 2.75 inches, a baseball and 2.8 times the National Weather Service's 1 inch severe criterion, reported on 2026-07-27 near Woodland.
Colored swath = NOAA MRMS radar-estimated hail size; dots = NOAA SPC reports in Illinois. Radar-indicated, not a guarantee of damage.
The last hail here fell on 2026-07-27, around Woodland. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Iroquois County addresses inside a hail swath above your size threshold into a door-knock list you can export, scoped to your approved markets.
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See call-center options ->How often it hails in Iroquois County
NOAA's Storm Prediction Center has logged 17 separate hail days here since 2010 -- 1.0 a year over 17 years of record. They carry 29 reports in total: most hail days here are logged from a single spot. 6 of those 17 years produced none at all. One year dominates the record: 2017 alone produced 4 of the 17 days. The last five years have been quieter than the long run: 3 days since 2022, against 1.2 a year before that.
3 of the 17 days reached 2 inches or more -- 18%, or about one hail day in 6, the last on 2026-07-27. Those big days do not follow the county's usual calendar: most of them fall in May, not June. 6 of the 17 days reached golf-ball size, 1.75 inches or bigger.
Across the whole of Illinois, see the Illinois hail map and history.
Hardest-hit places in Iroquois County
Reports cluster nearest Milford -- 3 of the county's 17 hail days -- then Watseka (3), Crescent City (3), Clifton (2) and Woodland (2). Beyond those, NOAA names Buckley, Wellington and Gilman on more than one hail day apiece.
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| Crescent City | 3 | 1.75″ |
| Milford | 3 | 1.25″ |
| Woodland | 2 | 2.75″ |
| Watseka | 2 | 1.75″ |
| Clifton | 1 | 2.75″ |
When it hails in Iroquois County
The season runs March through July: 14 of the 17 hail days on record fall in those 5 months (82%). June is the single busiest month, with 6 of them (35%). That peak sits inside the window rather than at either end. Hail has also been reported in August, outside that window. Reports span 6 of the 12 calendar months; the other 6 have never produced one.
| Month | Hail days |
|---|---|
| March | 3 |
| April | 1 |
| May | 3 |
| June | 6 |
| July | 1 |
| August | 3 |
Recent Iroquois County hail days
That day put 6 reports on the map, the biggest 2.75 inches near Woodland. 1 hail day has already been reported this year.
| Date | Max hail | Reports |
|---|---|---|
| 2026-07-27 | 2.75″ | 6 |
| 2024-08-30 | 1.25″ | 1 |
| 2024-06-24 | 1.00″ | 4 |
| 2021-06-12 | 1.25″ | 1 |
| 2019-03-14 | 1.00″ | 1 |
| 2017-06-14 | 1.00″ | 1 |
| 2017-05-26 | 1.25″ | 1 |
| 2017-04-09 | 1.75″ | 1 |
How to read the Iroquois County map
The colored swath is NOAA's MRMS radar estimate of the largest hail per ~1 km cell; the dots are SPC ground reports. Yellow is about an inch, red 1.5 to 2″, purple 2″ and up (hail size vs roof damage). On this county's worst day the reports reached 2.75 inches, which is the purple band. Look up a street address with the hail history by address tool.
Nearby counties
The nearest counties with a page of their own, over the state line included: Kankakee County (29 hail days), Vermilion County (40), Livingston County (19) and Newton County, Indiana (15). Iroquois County sits in between.
Kankakee County · Vermilion County · Livingston County · Newton County, Indiana
Back to the Illinois hail map or the U.S. hail map.
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Data & method: NOAA/NWS Storm Prediction Center reports + NOAA MRMS MESH radar, Iroquois County, Illinois only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.